Signal Processing TRIZ Cases
- Electronic Device Wearable Control Authority Mapping
Processor maps wearable control UI to electronic device functions, resolving authority security trade-offs via preliminary verification.
- Adjustable Acoustic Attenuator Enclosure for Microphone Protection
A passive acoustic attenuator enclosure uses an adjustable diaphragm structure to reduce sound pressure levels before they reach the microphone.
- Vehicle Sound Output Control via Variable Blowing Timing
Variable blowing sound start timing resolves the trade-off between reliable alarm detection and minimizing information delay during mute periods.
- Privacy-Enabled Voice Assistant Audio Path Switching
Audio path switching directs microphone input via a local bypass to protect user privacy without cloud processing.
- Audio Parameter Adjustment via Hearing Profile
A hearing profile adjusts audio parameters to improve sound perception for users with impaired hearing.
- Brim-Mounted Microphone Array for Wearable Audio
A wearable audio device uses a brim-mounted microphone array to capture voice signals directly near the user's mouth.
- Speaker Activity Detection Using Segmented Event Detectors
Segmented event detectors analyze power spectra to identify speaker activity and acoustic events, reducing misdetection rates during wind noise interference.
- Motorcycle Onomatopoeia Presentation for Environmental Awareness
A motorcycle helmet system presents onomatopoeic sounds and visuals to convey environmental data.
- Joint Beamforming and Echo Cancellation via MVDR Whitening
A joint beamforming and echo cancellation system uses weighted MVDR beamforming on whitened signals to improve speech quality.
- Audio Signal Optimizer for Automatic Gain Configuration
An audio signal optimizer analyzes input samples to configure processing modules and set optimal gain levels.
- Vehicle Engine Sound Control via Intake and Exhaust Temperature
Audio control system adjusts engine sound magnitude based on intake and exhaust temperature data.